iPad keeps freezing

My sister and I both got ipads a month back, but her one keeps freezing. The only way to get it working again is a complete new iTunes restore. This is happening 2-3 times a week, which is irritating as it was synced to my iTunes whilst she was away for uni. Would apple give me a new one? Seems like a problem in my eyes

Kerching said:

What app is she using when she gets a lock up? Sounsd more software driven to me than hardware.

Will it not do a restart of holding power button and home button till you get the apple log on restart?

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No, its happened to me on several occasions with different things running.

No that does not work at all, the screen has the waiting sign appear in the middle and makes a bell type noise. Nothing does it apart from a full restore.

Usually before it happens, all apps refuse to load.